半主动悬架的自适应模糊控制研究

【作者】 王晓娟；

【导师】 赵宁；

【作者基本信息】 西北工业大学 ， 机械电子工程， 2004， 硕士

【摘要】 在分析了车辆四自由度半主动控制悬架模型的基础上，研究了半主动悬架的自适应模糊控制方法。首先，给出了基本模糊控制规则表，设计了基本模糊控制器，建立了基本模糊控制系统。其次，给出了模糊控制性能评估表，设计了自适应模糊控制器，建立了自适应模糊控制系统。最后，运用两控制系统对半主动悬架实施控制，进行仿真分析。在设计自适应模糊控制器时，对自适应模糊控制方法做了一些适当的调整，使控制算法更简便有效。理论分析和MATLAB数值仿真计算结果表明，自适应模糊控制半主动悬架动态性能优于基本模糊控制半主动悬架，明显优于被动悬架。更多还原

【Abstract】 A four-degree-freedom vehicle control model of the automotive semi-active suspensions is studied in this paper. And the adaptive fuzzy control is then adopted in the research of semi-active suspensions. First, a regulatory table of basic fuzzy control is given, and a basic fuzzy controller is designed, and a system of basic fuzzy control is established. Second, a regulatory table of fuzzy control performance determination and an adaptive fuzzy controller are also designed. What’s more, a system of adaptive fuzzy control are given. Finally, two control systems are used to control the model of the automotive semi-active suspensions simulated by MATLAB Simulation respectively. During the design of the adaptive fuzzy controller, the adaptive fuzzy control algorithm is modified and simplified to diminish the complication of the algorithm. The theoretical analyses and MATLAB simulation results show that the dynamic performance of the adaptive fuzzy control semi-active suspension is better than that of basic fuzzy control semi-active suspension, and much better than that of the passive suspension.更多还原